Slides in this set

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Human Computer InterfaceHumans have to interact with ICT systems and there needs to be an affective dialogue between them and computers. HCI's provide the means by which the user can tell the computer what to do and at the same time the computer can interact with the human by giving them a response.…read more

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Type of HCIs Keyboard and Mouse are the most common Microphone Graphical devices Game playing devices Pointing devices Touch screens Biometric systems…read more

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Task, user experience, user preference & resourcesTask: different tasks require different HCI'sUser experience: a user with a lot of experience will want to complete a task in as little time as possible. Beginners won't care how long it takes.User preference: users may prefer to issue commands on the keyboard if it is faster than using pull down menus or clicking on icons.Resources: complex HCI's need more memory and fast processors to work.…read more

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GUI (graphic user interface)There are four main types:command line interface, graphical user interface, menu driven interface and natural language interface. Graphical User Interface: WIMP: windows, icons, mouse pointers.Windows: overlapping frames viewed simply or a combinationIcons: provide shortcuts to computer operationsMenus: features pop up screen and pull down from menuPointers: move around: mouse are easy to use, don't have to learn computer language. Icons are easy to use for beginners.: demands more memory and takes up more space.…read more

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Command Line Interface The user types in coded commands for system operations and the computer performs the task when enter is pressed. Users have to learn coded commands which makes this type of HCI more suited to computer professionals.: uses less memory and its effective.: difficult for beginners.…read more